scholarly journals Prediction of optical polarization and high-field hyperfine structure via a parametrized crystal-field model for low-symmetry centers in Er3+ -doped Y2SiO5

2021 ◽  
Vol 104 (15) ◽  
Author(s):  
N. L. Jobbitt ◽  
J.-P. R. Wells ◽  
M. F. Reid ◽  
S. P. Horvath ◽  
P. Goldner ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Crystal Field ◽  
High Field ◽  
Field Model ◽  
Optical Polarization ◽  
Low Symmetry

The Ground State in Cs2KFe(CN)6 From Single-Crystal Magnetic Properties

1992 ◽  
Vol 45 (8) ◽  
pp. 1301 ◽  
Author(s):  
PA Reynolds ◽  
CD Delfs ◽  
BN Figgis ◽  
B Moubaraki ◽  
KS Murray
Keyword(s):  
Magnetic Properties ◽  
Single Crystal ◽  
Crystal Field ◽  
Ground State ◽  
Field Model ◽  
Inversion Symmetry ◽  
Variable Parameters ◽  
Magnetic Susceptibilities ◽  
Effective Reduction ◽  
Low Symmetry

The single-crystal magnetic susceptibilities from 4.5 to 300 K, and the magnetizations at 4.5 K from 0.25 to 5 T, of Cs2KFe(CN)6 along a, b and c* are reported. The data are fitted well by a crystal field model with splitting of the ground-state 2T2g term of the hexacyanoferrate (III) ion. The three variable parameters of the model were the two representing the low-symmetry splitting of the t2g orbitals, and the effective reduction in the orbital angular momentum. Four other parameters were fixed at values known or estimated from other experiments on hexacyanoferrate (III) ions, including polarized neutron diffraction which determines the orientation of lower-symmetry crystal field components. The crystal field has only inversion symmetry with respect to the ligand axes, with a non-cubic component which is almost uniaxial with respect to the a,b,c * axis system.

LOW SYMMETRY CRYSTAL FIELD IN LITHIUM SPINEL

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-847-C1-849
Author(s):  
M. P. PIETROV ◽  
H. SZYMCZAK ◽  
R. WADAS ◽  
W. WARDZYNSKI
Keyword(s):  
Crystal Field ◽  
Low Symmetry

Simulation of f-d transition using the extended crystal-field model: parameter dependent study for Er3+ in various hosts

2010 ◽  
Vol 28 ◽  
pp. 258-261 ◽  
Author(s):  
Changkui DUAN ◽  
You ZHANG ◽  
Chonggeng MA ◽  
Guoya XIE ◽  
Liusen HU
Keyword(s):  
Crystal Field ◽  
Field Model ◽  
Model Parameter ◽  
Parameter Dependent

Comment on “Crystal Field Model of the Magnetic Properties of URu2Si2”

1995 ◽  
Vol 74 (20) ◽  
pp. 4097-4097 ◽  
Author(s):  
M. B. Walker ◽  
W. J. L. Buyers
Keyword(s):  
Magnetic Properties ◽  
Crystal Field ◽  
Field Model

INFLUENCE OF CRYSTAL FIELD EXCITATIONS COUPLED TO LATTICE VIBRATIONS ON THERMODYNAMICAL PROPERTIES OF A TWO-LEVEL PARAMAGNET

2004 ◽  
Vol 18 (03) ◽  
pp. 337-348
Author(s):  
J. ULNER ◽  
J. PEISERT ◽  
K. DURCZEWSKI
Keyword(s):  
Green Function ◽  
Specific Heat ◽  
Crystal Field ◽  
Field Model ◽  
Lattice Vibrations ◽  
Coupling Constant ◽  
Phonon Field ◽  
Thermodynamical Properties ◽  
Weakly Coupled ◽  
Perturbative Method

A two-level crystal field model in the presence of the phonon field is considered. Spins are arranged on a lattice and weakly coupled to the lattice oscillations of small amplitudes. The anticommutator Green function perturbative method up to the second order in the coupling constant is applied to find thermodynamical quantities. The magnetic spectral function, describing the crystal field excitations, influences these quantities. The effect is studied numerically and illustrated in figures. In particular, the influence of the coupling on the Schottky specific heat is shown.

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